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TWI560679B - Backlight driving module and display device using the same - Google Patents

Backlight driving module and display device using the same

Info

Publication number
TWI560679B
TWI560679B TW103141566A TW103141566A TWI560679B TW I560679 B TWI560679 B TW I560679B TW 103141566 A TW103141566 A TW 103141566A TW 103141566 A TW103141566 A TW 103141566A TW I560679 B TWI560679 B TW I560679B
Authority
TW
Taiwan
Prior art keywords
display device
same
driving module
backlight driving
backlight
Prior art date
Application number
TW103141566A
Other languages
Chinese (zh)
Other versions
TW201621867A (en
Inventor
Hsin-Huang Chen
Chen-Sheng Lee
Chia-Ming Hsu
Original Assignee
Hon Hai Prec Ind Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hon Hai Prec Ind Co Ltd filed Critical Hon Hai Prec Ind Co Ltd
Priority to TW103141566A priority Critical patent/TWI560679B/en
Priority to US14/589,743 priority patent/US9454944B2/en
Publication of TW201621867A publication Critical patent/TW201621867A/en
Application granted granted Critical
Publication of TWI560679B publication Critical patent/TWI560679B/en

Links

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406Control of illumination source
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10Intensity circuits
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B45/00Circuit arrangements for operating light-emitting diodes [LED]
    • H05B45/40Details of LED load circuits
    • H05B45/44Details of LED load circuits with an active control inside an LED matrix
    • H05B45/46Details of LED load circuits with an active control inside an LED matrix having LEDs disposed in parallel lines
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/06Adjustment of display parameters
    • G09G2320/0626Adjustment of display parameters for control of overall brightness
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/04Display protection
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/12Test circuits or failure detection circuits included in a display system, as permanent part thereof
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406Control of illumination source
    • G09G3/342Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
TW103141566A 2014-12-01 2014-12-01 Backlight driving module and display device using the same TWI560679B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
TW103141566A TWI560679B (en) 2014-12-01 2014-12-01 Backlight driving module and display device using the same
US14/589,743 US9454944B2 (en) 2014-12-01 2015-01-05 Display apparatus and backlight driving module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW103141566A TWI560679B (en) 2014-12-01 2014-12-01 Backlight driving module and display device using the same

Publications (2)

Publication Number Publication Date
TW201621867A TW201621867A (en) 2016-06-16
TWI560679B true TWI560679B (en) 2016-12-01

Family

ID=56079555

Family Applications (1)

Application Number Title Priority Date Filing Date
TW103141566A TWI560679B (en) 2014-12-01 2014-12-01 Backlight driving module and display device using the same

Country Status (2)

Country Link
US (1) US9454944B2 (en)
TW (1) TWI560679B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI650947B (en) * 2017-12-22 2019-02-11 隆達電子股份有限公司 Filter circuit and control system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105976769A (en) * 2016-07-12 2016-09-28 武汉华星光电技术有限公司 Liquid crystal display and method for reducing power consumption of liquid crystal display
CN209070956U (en) * 2019-01-02 2019-07-05 北京京东方光电科技有限公司 Backlight drive circuit, backlight and display device
CN111290171B (en) * 2020-02-18 2023-04-11 京东方科技集团股份有限公司 Direct type backlight source, backlight module and display device
US11763760B1 (en) * 2022-04-02 2023-09-19 Tcl China Star Optoelectronics Technology Co., Ltd. Backlight module and display device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100521858C (en) * 2003-05-28 2009-07-29 三星电机株式会社 Backlight inverter for liquid crystal display panel with self-protection function
TW200949808A (en) * 2008-05-23 2009-12-01 Innolux Display Corp Backlight driving circuit and display device using the same
CN1711807B (en) * 2002-12-02 2010-07-28 三星电子株式会社 Power supply device, backlight unit and liquid crystal display device having the same
TW201234924A (en) * 2010-12-08 2012-08-16 Rohm Co Ltd Drive circuit for optical element and light emitting device and electronic device using same
TW201315285A (en) * 2011-08-30 2013-04-01 Magnachip Semiconductor Ltd LED driver apparatus
CN101426323B (en) * 2007-10-30 2014-06-11 三星显示有限公司 Backlight driver and liquid crystal display device including the same
US20140333520A1 (en) * 2013-05-08 2014-11-13 Shenzhen China Star Optoelectronics Technology Co., Ltd Led backlight driving circuit, backlight unit, and lcd device
US20140340295A1 (en) * 2013-05-20 2014-11-20 Shenzhen China Star Optoelectronics Technology Co., Ltd. Led backlight driving circuit, lcd device, and method for driving the led backlight driving circuit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7847783B2 (en) * 2005-10-11 2010-12-07 O2Micro International Limited Controller circuitry for light emitting diodes
US8081199B2 (en) * 2009-06-26 2011-12-20 Panasonic Corporation Light emitting element drive apparatus, planar illumination apparatus, and liquid crystal display apparatus
TWI419609B (en) * 2009-08-19 2013-12-11 Novatek Microelectronics Corp Led device with simultaneous open and short detection function and method thereof
US8084960B2 (en) * 2009-12-30 2011-12-27 O2Micro, Inc Circuits and methods for powering light source with balanced currents
KR101876561B1 (en) * 2011-08-26 2018-07-10 엘지디스플레이 주식회사 Liquid Crystal Display Device and Driving Method the same
US9258862B2 (en) * 2013-05-08 2016-02-09 Shenzhen China Star Optoelectronics Technology Co., Ltd LED backlight driving circuit, LCD device, and method for driving the LED backlight driving circuit

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1711807B (en) * 2002-12-02 2010-07-28 三星电子株式会社 Power supply device, backlight unit and liquid crystal display device having the same
CN100521858C (en) * 2003-05-28 2009-07-29 三星电机株式会社 Backlight inverter for liquid crystal display panel with self-protection function
CN101426323B (en) * 2007-10-30 2014-06-11 三星显示有限公司 Backlight driver and liquid crystal display device including the same
TW200949808A (en) * 2008-05-23 2009-12-01 Innolux Display Corp Backlight driving circuit and display device using the same
TW201234924A (en) * 2010-12-08 2012-08-16 Rohm Co Ltd Drive circuit for optical element and light emitting device and electronic device using same
TW201315285A (en) * 2011-08-30 2013-04-01 Magnachip Semiconductor Ltd LED driver apparatus
US20140333520A1 (en) * 2013-05-08 2014-11-13 Shenzhen China Star Optoelectronics Technology Co., Ltd Led backlight driving circuit, backlight unit, and lcd device
US20140340295A1 (en) * 2013-05-20 2014-11-20 Shenzhen China Star Optoelectronics Technology Co., Ltd. Led backlight driving circuit, lcd device, and method for driving the led backlight driving circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI650947B (en) * 2017-12-22 2019-02-11 隆達電子股份有限公司 Filter circuit and control system
US10756706B2 (en) 2017-12-22 2020-08-25 Lextar Electronics Corporation PWM filter circuit and related control system

Also Published As

Publication number Publication date
US20160155417A1 (en) 2016-06-02
US9454944B2 (en) 2016-09-27
TW201621867A (en) 2016-06-16

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